app

commit 5f4e9e6444607f2ca517601e2dafb9561746dbcf
parent 8290eb0e55daf7d8ac483d6b50946d8b54b14e3c
Author: triesap <triesap@radroots.dev>
Date:   Mon, 19 Jan 2026 06:39:05 +0000

app-utils: add utils error type

- define RadrootsAppUtilsError enum
- add error message mapping
- implement Display and Error
- add unit tests for messages

Diffstat:
M
crates/utils/src/error.rs
 | 
50
++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 50 insertions(+), 0 deletions(-)
diff --git a/crates/utils/src/error.rs b/crates/utils/src/error.rs
@@ -1 +1,51 @@
 #![forbid(unsafe_code)]
+
+use std::fmt;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum RadrootsAppUtilsError {
+    InvalidInput,
+    Unavailable,
+}
+
+pub type RadrootsAppUtilsErrorMessage = &'static str;
+
+impl RadrootsAppUtilsError {
+    pub const fn message(self) -> RadrootsAppUtilsErrorMessage {
+        match self {
+            RadrootsAppUtilsError::InvalidInput => "error.app.utils.invalid_input",
+            RadrootsAppUtilsError::Unavailable => "error.app.utils.unavailable",
+        }
+    }
+}
+
+impl fmt::Display for RadrootsAppUtilsError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str(self.message())
+    }
+}
+
+impl std::error::Error for RadrootsAppUtilsError {}
+
+#[cfg(test)]
+mod tests {
+    use super::RadrootsAppUtilsError;
+
+    #[test]
+    fn message_matches_spec() {
+        let cases = [
+            (
+                RadrootsAppUtilsError::InvalidInput,
+                "error.app.utils.invalid_input",
+            ),
+            (
+                RadrootsAppUtilsError::Unavailable,
+                "error.app.utils.unavailable",
+            ),
+        ];
+        for (err, expected) in cases {
+            assert_eq!(err.message(), expected);
+            assert_eq!(err.to_string(), expected);
+        }
+    }
+}